Harvesting machine



8, 1930. I E. FRIISHANSEN 1,732,251

HARVESTINQ MACHINE File d Sept. 5, 1928 2 sneeis-sneet 1 IN V EN TOR. (IR/A Fe//s- A/ANSG'N BY MW A TTORN'EYS.

NOV- 18, 1930. uss 1,782,261

HARVESTING MACHINE Filed Sept. .5, 1928 2 Sheets-Sheet 2 IN VEN TOR.

I Ee F /-//v [715276 I BY 1K. BILL/m ATTORNEYS.

-45 ingfren mved vear]:mms-nAlws'EN, F FORTSASKATCHEWAN, ALBERTA, CANADA HAnvesTI'Ne MACHINE 7 Application filedseptember ThePresent invention relates generelly to harvesting inahhie's, end more particularly to the elevating Conveyor for carrying the out grajinito theb'incler mechanism. Atthe presenttimeeonsiderahle-difliculty is experienced with the Canvas helts'emp loyedfor elevators,

the "belts :being subject to stretching when lnois't'ened and when dried after beingwet the belts "often shrink 'to a, degree that they; be-

it come extremely tight. In either case the'belt forms'sueh" contact-with the'driving rolls that it eitherslips or binds; and decreasesthe efiiciency -o'f-themachine. I This also known that t'h'e ioller which 15 usl'lallybridges theg'apb'et'ween theeleva'tor and/the inclined grain deck adjacent the binder will loe'cbfne covered *with" grass and weeds which are carried along 'w-ith'the biit't entils oifthegrainstalks. This ,causesbunch; inge'f short lengthsofigi'assorother'vegeta the roller;

It is"anhjeet of thepr'esent invention to providefhrombinedi'platform and elevator 85' belt with means; for positively "driving "the belt, the preferreddriving means comprising a' lii ilr-ehain with whieh the belt is "designed to cooperate and spro'dl'cets "fore'otuatingth'e chain. It is a' further 'ebjeot of the invention -36 to guide'the 'b'elt 'in its movement from-a hor'i- A zofntzfl position to aninclined position. It is still another-object to providea self-ele'aning bridgingroller which' will prevent accumulation of short lengths of grass and other vege- 38 tatiomon-tlre'roHer. Further objects 'ofthe invention -w'-i11 he apparent-from the followifig' ides cription taken in connection with the a compa ying dra wingsjinwhieh'i *Fifg. 1 --is-a.- diagrammatic illustration of a -46 preferredforinofthe invention sh'owingone means" of fivin 'the several parts of-flthe meehenisrn l; v A ,Fig." 2' is a perspective View; "showing the elevator frame endanger roller, the' 'belt be Figs; 5 end"6"illustiete twdforinsoflinks "5, v1 92s. Serial No. 303,987.

employed in the modified chain" shown in Fig. 4; and; f "Fig. Tis a perspectiveviewof aportionof the bridging roller. v

Referring to the, drawings it willbe seen that the elevating mechanism comprises an endlessbeltlO, aportion 11 of whiehmov-es horizon-tallyand parallel'to the'ciittin bar 12 and the renminder 13 moves in an int ined direction and parallel to aneuxiliar y beh 1 4; 00 The cut grainis carried by and between the belts 10 and '14 overroller 15 we grhin deb-k l'6 with which-is assoiatedla bindingn'reehim-- nism, (not shown), of any suitable ty e; In most types of elevators'theelevator and-plub form belts "are-separate and moved by driving rollers 'ut', by esui-tebl'e errangementdescribed hereinafter {it {is possible eniifiloy a single endless heltto perform the functiel'ls of transferring. the out grain fromthe-cutter to the elevator and raise the grain-tothe binder; f

In 4 the present invention the belt 5 consists ofthe usual canvas band provided transverse bars 517. Goeperziting" with belt along each edge thereof is endless chain designed to be driven'andgiiided s pr0e1' ets 19, 20 and 21. At slpaoedintelrvais along the Chain; cleats or brackets 22, *forin ing-part of the *l-inks'or fastenedto thedin'ks '30 in so'ine suitable manner, 'a-re seeured'tethetra'nsver'se ba-rs for-mingpart of the elevater b'elt At the'inters'eetion0f the two planes in which" the -h'elt travels" the belt is guided or feonstra'i nedlto move in (a: definitelpflthhy 85 means ofigtiide' rails 23 which; as i-lliis'trzited A 'in Fig. 3, ceinprise'fangle bars bent toco'nparts and a; ap resent between thei'ends-of the hehain is pr'dvided withsuitifble rollers 24 to permit the chain to ride on the r! in under side of the rail with as little friction as possible, these rollers further cooperating with the sprockets 19, 20 and 21 to drive the conveyor belt.

In the diagrammatic illustration (Fig. 1) the sprocket 21 is provided with an auxiliary set of teeth coacting with a drive chain 25. The chain 25 is driven by suitable bevel gears 26, 27, the latter being connected with the bull wheel 28 of thereaper; may also drive other gears, such as those shown at 29 and 30, forming part of the cut ting and binding mechanism.

In Fig. 2 is shown in detail a preferred means 'ofactuating the cutter bar, and an auger roller or screw for pushing the cut grain on to the conveyor belt. The auger roller 31 and its shaft 32 are driven by bevel gears 33, 34, one of which is keyed to shaft 35 to which is also fixed the sprocket 19.

The end of shaft 32 is provided with a worm 36 which drives a worm wheel 37, the latter having a pin 38 thereon for reciprocating the connecting rod 39 secured to the cutter bar 12. The purpose of the auger bar is to force the grain stalks toward the belt, thus insuring the proper disposition of the grain on the conveyor. 1 j

The belt is preferably driven by the shaft 35 in order that the tight side of the belt may beunderneath, thus permitting the chain 18 to pass under the guide rails with a minimum amount of friction. .It is obvious, however,

I 4 that-the belt may be driven by any of the sprockets.

In the form of the invention illustrated in Figs. 3,4 and 5, some of thechain links are provided with ears or projections 40 designed to pass through reinforcedeyelets in the canvas belt or in the transverse bars 17. Each ear is drilled near its upper end to accommodate acotter pin or other suitable means for securing the links to the belt. The guide rail for this form of link consists of a channel member 41 having inwardly turned flanges 42 on its upper side, the flanges serving as rails over which the links slide or roll and being spaced to provide a slot through which the ins may pass. This type of guide rail permits the belt to ride over the flanges while the chain passes under the flanges.

The links may be made relatively wide to provide wings 43 adapted to forma bearing surface for the chain asit passes through'the guide rail, as shown in 5,.or they may have rollers 44, as shown in Fig. 6, to lessen friction as the chain contacts the rail.

In the type of harvester generally'employ- '1. 'ing an elevator and binder platform 'it is common practice to bridge the gap between the endnof the elevator belt and the grain deck orp'latform by. interposing a roller over which the grain rides to the grain deck.

Y Since there is grass and other vegetation The chain" 25 mounte a -is secured to the. shaft, engaging a pawl 48 growing around the butt ends of the grain stalks much of this grass and short length vegetation is cut with the grain. Much difficulty has been experienced with these grasses due to the fact that they separate from the grain and wrap around exposed parts such as rollers. As shown in Fig. 7, the present invention obviates this inconvenience by providing the bridging roller witha number of longitudinal metallic flaps 45 designed to permit the grain to be carried' over to the graindeck but so arranged that they prevent accumulation of loose matter and grasses. The roller shaft 46 is preferably driven by an auxiliar sprocket, the roller being loosel on the shaft. A ratchet clutch 47 on the roller when rotating in one'direction but disengaging the pawl when rotated in the opposite direction. Due to the form of fiap employed it is obvious that the roller should be rotated only in one direction and it is necessary to employ a uni-directional clutch connection between the roller and its driving shaft.

From the above description itwill be seen that this invention obviates many of the difliculties present in harvesting machines. Since it is necessary to adjust the present type of belt in accordance with atmospheric conditions, much time is wasted in tightening or loosening straps, freeing rollers of foreign matter which becomes hard and tightly wrappedon the rollers, and removing grass from the cutters. In the present arrangement the belt is positively driven regardless of the stretch or shrinkage thereof and, being in one length, eliminates the gap between the platform and the elevator. The bridging roller is self-cleaning and insures free operation of this element by obviating the braking, effect of grasses which usually cling to rollers disposed in gaps. j I

Although a preferred form of the inven-. tion has been illustrated and described, it is obvious that it maybe modified to meet certain requirements and is not limited to the exact arrangement shown in the drawings.

What I claim is:

1. In a harvesting machine, a frame including side members, each of which consists of two legs disposed angularly with respect to each other, a transverse shaft at each end rality of links some of which have projections thereon, said chains operating over said sprocket wheels and being guided by said guide rails, and an endlessconveyor belt secured to the projections on thelinks of the chains and adaptedjto travel in a path conforming to the shape of the frame.

2.111 a harvesting machine, a cutter bar,

an endless belt conveyor, a portion ofsaid' conveyor being parallel to said cutter bar, and ascrew interposed betvveensaid cutter bar and said conveyor, the axis of said screw being parallel to said cutter bar.

3. In a harvesting machine as claimed in claim 2, a drive shaft for saidconveyor, and means on said shaft for driving said cutter bar and screw. 7

' 4. In a harvesting machine, an elevator belt, a grain deck, the upper ends of said belt and said deck being adjacent but spaced from each other, a bridging roller interposed between said upper ends, and means on said roller to prevent accumulation of vegetation thereon.

5. In a harvesting machine, an elevator belt, a grain deck, the upper ends of said belt and said deck being adjacent but spaced from each other, a bridging roller interposed between said upper ends, and a plurality of a longitudinally disposed flaps secured to said roller.

6. In a harvesting machine, an elevator belt, a grain deck, the upper ends of said belt and said deck being adjacent but spaced from each other, a bridging roller interposed between said upper ends, a shaft for driving said roller, and a uni-directional clutch adapted to rotate said roller When the shaft is rotated in one direction and permit relative movement When'the shaft is rotated in the c opposite direction.

whereof I afiix my signature. ERIK FEES-HANSEN.

. In testimony 

